Scoped storage

scoped-storage.js

let scoped_storage = (key, { storage = localStorage } = {}) => {
  return {
    get: ({ default = null } = {}) => {
      let value_stringified = localStorage.getItem(key);

      if (value_stringified == null) {
        return default;
      }

      try {
        let value = JSON.parse(value_stringified);
        return value;
      } catch (err) {
        localStorage.removeItem(key);
        return default;
      }
    },
    set: (value) => {
      let value_stringified = JSON.stringify(value);
      localStorage.setItem(key, value_stringified);
    },
  };
};